Automatic door draft stop



June 19, 1934. M J BRENNAN 1,963,882

AUTOMATIC DOOR DRAFT STOP Filed March 22, 1933 3 Sheets-Sheet 1 InvenlorN. :7. Brennan flllorney June 1934- M. J. BRENNAN 1,963,882

AUTOMATIC DOOR DRAFT STOP Invenior M17. Brennan A I am m flllomey N June19, 1934- M. 'J. BRENNAN AUTOMATIC DOOR DRAFT STOP Filed March 22, 1933Inventor Brennan By @Mw/i;

flilorney s Sheets-Sheet 3 4 Figure 8 is a section taken substantiallyon the Patented June 19, 1934 UNITED STATES PATENT OFFICE,

Application March 22, 1933, Serial No. 662,152

1 Claim. (C1. -68) The present invention relates to that general to thehinged edge. Numeral 7 denotes another class of devices known as doorweatherstrips, and strip mounted below the strip 6 and movable relatesmore particularly to an automatically opwith respect to said strip 6.This strip '7 is conerable device for closing the open space betweennected to the strip 6 by means of a link 8 of r 51 the bottom of thedoor and the floor or door sill elongated construction hingedlyconnected with and preventing the admission of cold air, dust, leaves 9and 10 fixed respectively in opposite ends etc., past the door. ofrecesses 11 and 12 of respective strips 6 and '7.

The invention has among its objects the pro- A spring 14 is engaged withthe strips 6 and 7 duction of a device of this nature which is simandtends to hold these strips in abutment with 10? ple, inexpensive,compact, attractive, durable, efeach other in the position shown inFigure 9 and ficient and satisfactory for use wherever found this spriis housed in s s 1' d 18 formed applicable. in the front faces of strips6 and 7 and adapted A furthermore particular object of the invento notchtogether when the strips are in abuttion resides in the provision of adevice of this nament.

15 ture which will be automatic in operation, that A P ate 19 i fi yScrews 0 Ot Su tis, upon opening the door it will automatically adablemeans to the strip 6 on the front face therejust itself so as to clearthe floor or sill and per- Of a d fun s as a guide for the movable miteasy opening of the door and which, when strip '7. the door is shut,will automatically seat on the A roll r 21 i m n n a p n 22 p in 20floor or sill and closely fit the same, from the strip '7 adjacent thehinged edge of the With the above and numerous other objects door andthis roller is of such a diameter as to in View as will appear as thedescription proceeds, ave a portion of its p p y sli y p u the inventionconsists in certain novel features y nd h end f h strip '7 so as toengage h of construction, and in the combination and ardoor frame at thehi d edge of the (1 and 25 rangement of parts as will be hereinaftermore when the door is closed this roller engages the fully described andm i frame and causes the strip 7 to be moved longi- In th drawings;tudinally of the strip 6 and away therefrom and Figure 1 is a frontelevation of the device emthe p 22 is accommodated by a Slot 5 in ebodying the features of my invention showing plate 19 and therefore theStrip is caused to he 30 the same mounted on the lower portion of themoved away from e strip 6 as the door is closed 1 thereby causingweather-stripping tube 28 to be Figure 2 is a horizontal section takensubstanengaged With the 11001 Sill 0f the ytially on the line 2-2 ofFigure 1, This tube 28 is of flexible rubber like material or Figure 3is a perspective view of a plate formthe like and is preferably mountedin place y .35. ing part of the device. a strip 29 and suitablefastening means 30.

Figure 4 is a rear elevation of the device shOW- It is thought that theConstruction, Operation,

mg the Same in What I term engaged position utility and advantages ofthis invention will now Figure 5 is a perspective View f one member beclearly understood by those SKI 116d in this art without a more detaileddescription thereof. of the devlce. h t b t f th Figure 6 is aperspective view of the other mem- T e presien 0 mflen o e lpven Ion hasber of the device tbIe-en described f1n consiilgralile detail merelytfore purposes 0 exemp1 ca 1on since in ac ua i j an t g m detall showingthe practice it attains the features of advantage enudevlce m dlsenga'gep051 merated as desirable in the statement of the invention and theabove description. 11119 d ofg'lgure 7 but showmg the devlce m It willbe apparent that changes in the details engage 1 i 1011 of construction,and in the combination and ar- Figure 9 1s a section taken substantiallyon rangement of parts may be resorted to Without the line 9 of Figureand departing from the spirit or scope of the invention '50 Fig 11 8 enenlarge? detall perspectlve Vlew as hereinafter claimed or sacrificingany of its of the weat erstripping evice. ta

Refekrrifintghto the driwg detail it fl l Having thus described myinvention, what I seen t a e numera eno es a oor, on e 1 m as w is;outer bottom surface of which is fixedly en a In combination with a doorand its frame, a

:55 a bar Strip 6 tending from the free edge stationary strip connectedwith one face of the therein, each located adjacent an end of a strip,

hinged plates fastened in opposite ends of said notches, an elongatedhinged plate pivotally con.- neeted to the inner ends of said hingedplates,

, said edges of the two strips having elongated recesses therein openingout through the outer faces of the strips, said recesses being locatedadjacent the other ends of said strips, a spring having one end fastenedin the inner end of the recess of the stationary strip and its other endfastened in the outer end of the recess in the movable strip, wherebysaid spring will hold the two strips together, with the hinged end ofthe movable strip projecting from the adjacent end of the stationarystrip, a plate having its upper part fastened to the outer face of thestationary strip, said plate depending from the stationary strip andforming a guide for the movable strip, and a roller carried by theprojecting end of the movable strip for engaging a part of the frame forforcing said movable strip longitudinally and downwardly, and said platehaving a downwardly and inwardly curved notch'in one end thereof forreceiving the axis of the roller when the movable strip is in loweredposition.

' MARTIN J. BRENNAN.

